Antec 902 case, fully working (fans etc)
ASUS M4A78T-E motherboard
Phenom II X4 955 Black Edition With Noctua U12P Cpu cooler.
XFX HD 4890
PSU: Antec TRUEPOWER 650 Watt ( 2 6 pin's are connected to the graphics card.)
I dont see how this is relevant though.. the graphics card is installed correctly, its just some kind of Bios setting or driver that's missing.. Or am I wrong?
Windows 7 64-bit (Ultimate) And I've tried installing and uninstalling drivers, but when I try to install any drivers for the detected 'Radeon 4800 series' I get Error code 43.
I'm returning my GFX card for testing.
Before doing that - take the 4890 out of the system - boot into windows using the onboard - go in and change the video driver to the default VGA driver and shut down the system. - Reinstall the 4890 and ensure it is all hooked up (including moving the monitor plug to the 4890 - boot the system and enter BIOS and disable the onboard and set the default boot video to the PCI-e slot - save the changes and let the system boot - after windows loads go in and install the drivers for the 4890 (If it doesn't do this automatically using the found new hardware)